import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        long a = sc.nextLong();
        long b = sc.nextLong();
        for(; a<=b;a++ ){
        	if(a%3==0 || String.valueOf(a).indexOf("3") != -1){
        		System.out.println(a);
        	}
        }
    }
}